Greaser valve for alemite fitting connections



Aug. 16, 1932. n. R. YARNALL 1372211 GREASER mm: ron manna rrr'rnw conncuous y Filed M's, 1931 ture embodying a Patented Aug. 16, 1932 PATENT OFFICE" DAVID ROBERT YARNALL, F PHILADELPHIA, PENNSYLVANIA, ASSIGNOB 1'0 YAR- NALL-WARING COMPANY, PENNSYLVANIA OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF e GBEASEB VALVE FOB ALEMITE FITTING CONNECTIONS Application filed June 5,

My invention relates to a method of lubricating the friction members of a seatless valve.

A purpose of the invention is to feed lubricant upon the outside of the tubular plunger of a seatless valve intermediate longitudinally spaced packing rings thereof, so that reciprocation of the plunger incident to opening and closing of the valve may carry lubricant to the packings.

A further purpose is to utilize structure limiting the longitudinal movement of a seatless valve in the dispensing of lubricant upon the friction members of the valve.

A further purpose is to apply the alemite method of lubrication to'the friction members of seatless valves.

A further purpose is to utilize structure which now prevents rotation of a pushing gland within a seatless valve for the additional purpose of lubricating the valve plug.

Further purposes will appear in the speci cation and in the claims.

I have elected to show one main form only of my invention, showing however a minor modification and selecting a main form and modification thereof that are practical and efficient in operation and which well illustrate the principles involved:

Figure 1 is a fragmentary longitudinal section through a seatless blow-ofi valve shown closed and equipped with lubricating strucdesirable form of my invention.

Figure 2 is a view corresponding to Figure 1 except that the valve is shown open in Figure 2 and closed in Figure 1.

Figure 3 is a fragment of Figure 1 or Figure 2 modified with respect to the mechanism for delivering lubricant to the valve plunger.

Like numerals refer' to like parts in both figures.

Describing in illustration and not in limitation and referring to the drawing The illustration shows my invention embodied upon a commercial valve of the seat less hollow piston type such as is used frequently in ablow-01f line ofa boiler.

A lateral inlet 4, usually connected to a high pressure boiler or the like, is normally closed by a cylindrical surface 5 of the Valve 1931. Serial No. 542,254.

piston 6, the piston being externally sealed with respect to the valve body 7 by upper and lower packing rings 8. and 9 respectively above and below the inlet ort 4.

The piston has a flanged ead 10 internally threaded for receiving the operating screw 11, the screw journalling in the bonnet 12 and the bonnet seating on an'upwardly directed shoulder 13 of an upper gland 14 fitting between the body and lunger.

The bonnet is boltes" to the body but spaced therefrom by engaging the upper end of the I gland 14, pressing the gland'downward upon the packing 8 which in turn presses a lower gland 15 downward upon the lower acking 9, the lower packing seating on as oulder 16 of the body.

The lower gland is ported at 17 in registry with the inlet port 4. In existin valves of this type any angular movement 0 the gland is prevented by of screw 18, carried by the body and having an inner end projecting into a short longitudinal slot 19 of the gland. As a matter of convenience I can use this same position for a set'screw serving this purpose but-make it hollow as is true of 18 and use it as a feeder for lubricant, or can infect the lubricant through a wholly separate inlet such as 18 which does not perform the additional function. I prefer, and therefore illustrate the structure which performs the double function.

It will be seen that the slideway of the plunger includes the gland 14, packing ring 8. gland 15 andpacking ring 9, the whole pull of the bonnet bolts being transmitted to com-.

press the packing rings. The operator is able also to increase the compression of the pack ings and the tightness of seal during valve closure'by additionally turning the valve wheel 20 after the flanged head 10 of the plunger engages the upper end of the gland 14.

The port 21 through the plunger has a lateral inlet adapted to register with the ports 17 and 4 when the valve is open as in Figure 2, and a longitudinal outlet from the lower end of the plunger. O

The structure thus far described, using a a set screw in the position Too solid screw instead of the screw shown at 18 is-old and has been used commercially for years.

a I use the position of the stop screw or a separate location, as preferred, for an inlet Where the screw 18 performs both functions.

this is conveniently done as shown. The lower gland member 15 is bored at 24 from the slot 19 and is preferably circumferentially grooved on its inside surface at 25 in registry with the bore 24, the groove extending wholly or partially around the interior of the lower gland member as preferred.

Each delivery of lubricant passes through the fittings 23 and 18, slot 19, and the perforation 24 into the groove 25 to engage the outside of the plunger throughout the length of the groove, the plunger carrying the lubricant upwardly and downwardly to the packing rings.

It is obvious the actual method of delivering lubricant to the fitting 18 and the character of this inlet may be widely varied, both being given forms to best accommodate the lubricant fed.

In Figures 1 and 2 the fitting 23 has an outer end adjustably threading into the open end of a grease cup 26. The operator of the valve screws the cup further upon the fitting 23 preparatory to opening and closing the valve whenever lubrication of the valve appears desirable.

In the structure of Figure 3 the perforated stop fitting 18' has its capped outer end 27 normally closed by a spring pressed ball 28, the fitting carrying lateral pins 29. to be engaged by the hooks of an alemite type of lubricant pump to be used successively upon any number of valves, each presenting a lubricant fitting, such for example as that shown in Figure 3.

The form of Figure 3 is particularly advantageous when there are a great many valves under the general care of an engineer normally not an operator of the valves.

In view of my invention and disclosure variations and modifications to meet individual whim or particular need will doubtless become evident to others skilled in the art, to obtain all or part of the benefits of my invention Without copying the structure shown, and I, therefore, claim all such in so far as they fall within the reasonable spirit and scope of my invention.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 1. A seatless valve including a plunger having a through L passa e from side to end of the plunger, longituc inally spaced annular packing rings about the plunger and an intermediate inner gland laterall ported in registry with a lateral port of the body and with a lubricant passage from the outside of valve to said groove.

2. A seatless valve including a plunger having a through L passage from side to end of the plunger, lon itudinally spaced annular packing rings a out the plun er and an intermediate inner gland latera ly ported in registry with a lateral port of the body, grooved about its interior and formed with a lubricant passage from the outside of valve to said groove and external means for forcing a lubricant into said-passage.

3. A seatless valve including a plunger having a through L passa e from side to end of the plunger, longitu inally spaced annular packing rings about the plunger and an intermediate inner gland laterally ported in registry with a lateral port of the body and grooved about its interior, and a hollow stop engaging the intermediate gland to prevent its rotation, the interior of the stop being in communication with the groove and the exterior accessible for insertion of lubricant.

4. A seatless valve includin a plunger having a through L passage from side to end of the lunger, longitudinally spaced annular pac ing rings about the plunger and an intermediate inner gland laterally ported in registry with a lateral port of the ody, and a lubricant head mounted on the body having an inner shank laterally fitting an exterior longitudinal recess of the intermediate gland to angularly lock the said gland with respect to ,the body and permit longitudinal movement thereof for variant compression of the packing, and being accessible from the outside.

5. A seatless valve includin a plunger having a through L passage from side to end of the plunger, longitudinally spaced annular packing rlngs an intermediate inner gland laterally ported in registery with a lateral port of the body, and a lubricant head of the alemite type mounted on the body having an inner shank laterally fitting an exterior longitudinal recess of the intermediate gland to angularly lock the said gland with respect to the body and .permit longitudinal movement thereof for variant compression of the packing, and being accessible from the outside for engagement of an alemite type gun.

6. A seatless valve including a tubular plunger having a lateral port, longitudinally spaced packing rings around an intermediate portion of the plunger, a laterally p ed sleeve between the rings, a T body grooved about its interior and formed about the plunger and casing receivin the packing rings and sleeve, and agland a apted by inward movement to compress the packing rings and sleeve in combination with a stop fitting for angularly registerin the lateral ports of the sleeve and body and means for passing lubricant through the fitting and sleeve to the plunger.

7. In a seatless valve, a T body having a lateral opening, upper and lower glands, an upper packing ring between the glands, a lower packing, an annular shoulder of the body seating and upwardly supporting the lower packing, the lower gland having a lateral opening registering with that of the body, a plunger having a slidewa including the glands and packing rings an having an L passage with a side port adapted to register with the ort throu h the lower land, and a longitu inally per orated stop fitting preventing angular movement of the lower gland, while permitting its longitudinal movement, and the lower gland having'an interior recess and a port for delivering lubricant from the inner end of the stop fitting to the outside of the plunger around a considerable portion-6f the circumference there- DAVID ROBERT YARNALL. 

